package com.example;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;

@WebFilter(filterName="myFilter",urlPatterns="/*")
public class MyFilter implements Filter{
	@Override
    public void destroy() {
//        System.out.println("过滤器销毁");
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain) throws IOException, ServletException {
//        System.out.println("执行过滤操作");
        chain.doFilter(request, response);
    }

    @Override
    public void init(FilterConfig config) throws ServletException {
//        System.out.println("过滤器初始化");
    }
}
